<template>
  <div class="tab-control">
      <div v-for="(item,index) in titles" :key="item" 
      class="tab-control-item" :class="{active:index===currentIndex}" @click="itemClick(index)">
          <span>{{item}}</span>
      </div>
  </div>
</template>

<script>
export default {
    data () {
        return {
            currentIndex:0
        }
    },
    props: {
        titles:{
            type:Array,
            default(){
                return []
            }
        }
    },
    methods: {
        itemClick(index){
            this.currentIndex=index;
            this.$emit('tabClick', index) //传参数到外面
        }
    }
}
</script>

<style>
.tab-control{
    display: flex;
    width: 100%;
    text-align: center;
}
.tab-control-item{
   flex: 1;
   height: 40px;
   line-height: 40px;
}
.tab-control-item span{
    padding: 5px;
}
.active{
    color: var(--color-high-text);
   
}
.active span{
    border-bottom:3px solid var(--color-tint) ;
}
</style>